Why probe hybridizes to vector?

Wenfu biolc4 at jetson.uh.edu
Sun Jul 2 17:37:53 EST 1995

When I was using isolated DNA fragment( I am sure no any vector sequence in
to probe digested plasmids, I found my probe hybridizes to the vector.
This kind of thing happen to me several times when I was doing the similar
thing. Although it did not matter for my results, I am really curious 
about the reasons for.
Any idea would be appreciated.

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